Question

Question 7

Laura had 23 ounces of plant food. She wants to use the same amount of plant food each day on her garden. She wants to use all the plant food she has before buying more. Which statement is true?
If she uses plant food in her garden for 6 days, she uses
1
6
ounces of plant food each day
B
2
If she uses plant food in her garden for 10 days, she uses 2
23
ounces of plant food each day
Ounces of plant food each day
С
If she uses plant food in her garden for 8 days, she uses 3
8
8
1
D
If she uses plant food in het garden for 11 days, she uses 2 11 ounces of plant food each day

Answer 1

(d) and (e) are true

Explanation:

Given

`Food = 23\ oz`

See attachment for proper presentation of question

Required

Select all true statements

For any option to be true, it must satisfy the following condition.

`Days * Food = 23`

Option (a):

`Days = 6`

`Food = 4(1)/(6)` per day

So, we have:

`Days * Food = 6 * 4(1)/(6)`

`Days * Food = 6 * (25)/(6)`

`Days * Food = 25`

This is not true because:
`25 \\e 23`

Option (b):

`Days = 10`

`Food = 2(2)/(23)` per day

So, we have:

`Days * Food = 10 * 2(2)/(23)`

`Days * Food = 10 * (48)/(23)`

`Days * Food = (480)/(23)`

`Days * Food = 21` --- approximated

This is not true because:
`21 \\e 23`

Option (c):

`Days = 8`

`Food = 3(1)/(8)` per day

So, we have:

`Days * Food = 8 * 3(1)/(8)`

`Days * Food = 8 * (25)/(8)`

`Days * Food = 25` --- approximated

This is not true because:
`25 \\e 23`

Option (d):

`Days = 11`

`Food = 2(1)/(11)` per day

So, we have:

`Days * Food = 11 * 2(1)/(11)`

`Days * Food = 11 * (23)/(11)`

`Days * Food = 23` --- approximated

This is true because:
`23 = 23`

Option (e):

`Days = 7`

`Food = 3(2)/(7)` per day

So, we have:

`Days * Food = 7 * 3(2)/(7)`

`Days * Food = 7 * (23)/(7)`

`Days * Food = 23` --- approximated

This is true because:
`23 = 23`